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Black Diamond Boundary Line Insulated Pants

sku# 158548
Black Diamond - Boundary Line Insulated Pants
Model Info
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Product Info

The Black Diamond Boundary Insulated Pants feature a synthetic Thermolite insulation and exclusive PFC-Free GTT Breathable Water Protection DWR coating that combine for an incredibly warm, dry and comfortable pair of pants when powering your way to your favorite terrain.

Product Details

Face Fabric

180 g/m² 100% Polyester Stretch Twill Woven with GTT Breathable Water Protection Finish


BD.dry™ 3LBuilt for climbers and backcountry adventurers, BD.dry™ is Black Diamond's innovative waterproof/breathable/windproof technology designed to shield you from whatever the weather holds.


ThermoLite® Synthetic Insulation | 60 g/m²Designed using hollow-core synthetic fibers, ThermoLite® insulation traps air for greater insulating properties while remaining lightweight, durable and warm even when wet. ThermoLite®'s large surface area allows for quick-drying performance by bringing moisture away from your skin to the surface of the fabric. Its light and compressible properties make it the ideal insulation for weight-conscious alpine pursuits in damp climates.

Lining Material

37 g/m² 20D 100% Nylon Plain Woven with DWR


Regular Fit


YKK® Aquaguard® Zippered Pockets


Zippered Sideseam Venting


  • Fit: Regular More 
  • Length: Regular
  • Material: Nylon, Polyester
  • Construction Type: 3 Layer
  • Waterproof Rating (mm): 20000
  • Breathability (g): 20000
  • Insulation: Thermolite®
  • Fill Weight (g): 60
  • Seam Sealing: Fully Taped
  • Bibs: No
  • Suspenders: No
  • Beltloops: Yes
  • Warranty: Limited Lifetime
Size S M L XL
Weight (g) 746

Other Notes

Black Diamond products can only be shipped within the United States and Canada



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